Moxa CP-134U-I-DB9M 4-Port Industrial Universal PCI Serial Board
The Moxa CP-134U-I-DB9M is a 4-port Universal PCI serial communication board designed for industrial automation, data acquisition and multi-device serial communication applications. It combines RS-232, RS-422 and RS-485 connectivity with 2 kV electrical isolation to provide reliable serial communication for industrial computer systems.
The board provides 2 × RS-232/422/485 ports and 2 × RS-422/485 ports. It supports communication speeds from 50 bps to 921.6 kbps and incorporates a 128-byte FIFO with hardware and software flow control. Moxa's ADDC technology provides automatic data-direction control for RS-485 communication, helping simplify half-duplex serial communication.
Technical Specifications
| Specification |
Details |
| Model |
CP-134U-I-DB9M |
| Product Type |
4-Port Universal PCI Serial Board |
| Serial Ports |
4 |
| Serial Standards |
2 × RS-232/422/485; 2 × RS-422/485 |
| Bus Interface |
32-bit Universal PCI |
| PCI Compatibility |
3.3V and 5V PCI/PCI-X |
| Communication Controller |
MU860, 16C550C compatible |
| Connector |
DB44 female |
| Included Cable |
CBL-M44M9x4-50, M44 to 4 × DB9 male, 50 cm |
| FIFO |
128 bytes |
| Baud Rate |
50 bps to 921.6 kbps |
| Data Bits |
5, 6, 7, 8 |
| Stop Bits |
1, 1.5, 2 |
| Parity |
None, Even, Odd, Space, Mark |
| Flow Control |
None, RTS/CTS, XON/XOFF |
| Isolation |
2 kV electrical isolation |
| RS-485 Feature |
Automatic Data Direction Control (ADDC) |
| Maximum Boards per PC |
Up to 8 |
| Operating Temperature |
0°C to 55°C |
| Storage Temperature |
-40°C to 85°C |
| Warranty |
5 years |
Multiport Serial Communication for Industrial Systems
The CP-134U-I-DB9M allows a compatible computer to communicate with multiple serial devices through four independent serial ports. The flexible interface combination makes it suitable for industrial equipment that uses different serial standards, including RS-232 terminals and RS-422/485 multi-point devices.
Typical applications include industrial automation, PC-based data acquisition, machine control, factory monitoring, building automation and serial device integration. The board can also support RS-485 multidrop networks where multiple devices communicate over a shared serial bus.
2kV Electrical Isolation
The 2 kV electrical isolation of the CP-134U-I-DB9M provides additional protection for industrial serial communication systems. Isolation can help reduce the effects of ground-potential differences and electrical disturbances between connected serial equipment and the host computer.
RS-485 Automatic Data Direction Control
Moxa's Automatic Data Direction Control (ADDC) technology is designed to simplify RS-485 half-duplex communication by automatically controlling the transmit and receive direction. This reduces the need for precise software timing when switching between transmission and reception.
Moxa specifies that CP-134U series boards can support RS-485 multidrop communication with up to 31 daisy-chained devices over distances of up to 1.2 km under appropriate network conditions. Actual communication distance depends on cable quality, baud rate, topology and installation environment.
Compatibility and Included Cable
The CP-134U-I-DB9M uses a 32-bit Universal PCI interface and supports compatible 3.3V and 5V PCI/PCI-X systems. It is therefore intended for computers equipped with a suitable legacy PCI expansion interface rather than PCI Express-only systems.
The board has a DB44 female connector and the CBL-M44M9x4-50 cable is included with the DB9M version. This 50 cm cable provides four DB9 male serial connections for attaching compatible serial equipment.
Operating System Support
Moxa provides drivers for a broad selection of operating systems, including supported Windows, Linux and UNIX environments. Driver and operating-system compatibility should be confirmed against the specific host platform before deployment, particularly for legacy PCI systems.
Moxa CP-134U-I-DB9M Price in Bangladesh
For the latest Moxa CP-134U-I-DB9M price in Bangladesh, contact Datacom Technologies (BD). Pricing and availability may vary depending on sourcing, product condition, warranty and stock status.
Contact: sales@datacom.com.bd
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